Kikusui TOS5050A, Руководство по эксплуатации

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TOS5051A/5050A 1-3
Chap
.1
Gener
al
5. An analog voltmeter and a digital voltmeter
The tester is equipped with an analog voltmeter (±5 % FS) and a digital volt-
meter (±1.5 % FS)--the former for quick grasp of the voltage and the latter for
more accurate readout--assisting you to conduct your tests rapidly but accu-
rately.
6. A digital ammeter
The digital ammeter can be used to measure the current that fl ows through the
DUT (device under test).
7. A window comparator for pass/fail judgment
The tester has a window comparator for pass/fail judgment with reference to
both upper (U) and lower (L) criteria (cutoff current). The comparator gener-
ates a FAIL signal when the measured current that
fl ows through the DUT is
greater than the preset upper limit criterion or when it is less than the preset
lower limit criterion. The L FAIL detection function contributes to improve the
test reliability by detecting open-circuits and bad contacts of the test leads. The
tester has a separate indicator and signal output for each type of failure (U type
and L type). This allows you to immediately
fi nd out whether the failure is a
withstand voltage failure or an open-circuit/bad-contact failure.
You can preset the upper limit and lower limit currents (cutoff currents) inde-
pendently, within the ranges shown in the following table.
8. A digital timer
The timer allows you to preset the period during which the test voltage is to be
applied to the DUT. The preset range is 0.5 to 999 seconds (in 1895 steps).
When the timer function is ON, the preset period is decreased and the timer
indicates the remaining period; when it is OFF, time is increased and the timer
indicates the elapsed period.
9. Remote control function
The tester has functions for remote start/stop control operation. That is, it has a
5-pin DIN connector (for the optional remote control box or high voltage test
probe) on its front panel and a 14-pin Amphenol connector on its rear panel.
The remote control function, together with the status signal function, will help
you conduct ef
fi cient automatic labor-saving tests.
Model Preset range of upper and lower limits
TOS5051A 0.1 mA to 110 mAAC 200 steps
0.1 mA to 11 mADC 101 steps
TOS5050A 0.1 mA to 110 mAAC 200 steps